I was merely trying to turn the course of this discussion away from this pointless philosophical chit chat.
Technically, since everything we're discussing hinges on past events, that we can not be sure ever happened since most come from texts from dead religions, nothing we're discussing is falsifiable, making philosophical anyway.
For example, the nearest quarry to a pyramid is like what, 200 miles away.
Is it not possible for their to be other, much closer quarries that we have not found? Or have been completely used up and are now nothing but desert?
It is so logical that the people back then couldn't describe what they are seeing.
There is quite a difference between consistent & possible, and logical. Consistent & possible includes the 9-11 conspiracy, while logical includes evolution and relativity. Please don't take that as an insult, I'm not trying to compare aliens visiting the Earth to the 9-11 conspiracy theory, just that they are both in the same broad category. I have watched the entire documentary (all the parts) that you linked to, and most of the video can be explained. The problem I have with the video is it's dangerously convincing. As I was watching, I was agreeing with it every step of the way... until I realized how it was being presented. They would show you one tribe's monument/earth drawing/city, explain to you what you were looking at (so far so good), then draw the conclusion for you (I can live with that), then say that's it's ridiculously improbable for this to have been made by humans alone (which I don't like). If a tribe named a lake "The pouncing jaguar", you shouldn't assume that it was named because an alien was hovering over it and told the humans to call it that; while the idea is possible, you could also say that the tribe made a map of it, looked at it, and noticed it looked like a jaguar.
What I'm trying to say is, it's an interesting possibility, and it's definitely worth discussing, but it is philosophy, and all of it can't come from a single documentary (even if it is narrated by Rod Serling).